Re-add backwards compatibility for URLs using old UserSettings plugin + add test coverage so BC break will be detected in the future.

UI tests: UI tests: New Piwik redesign refs https://github.com/piwik/piwik/pull/8936 https://github.com/piwik/piwik/issues/7589

Left menu 

Fix some icon placement issues in referrers and visitor log

Fixing #8529

Always show apply button in date selector

DI in TableLogAction Cache

 	Remove STRICT_TRANS_TABLES SQL mode to prevent fatal error 

Remove Majestic SEO feature

We cannot let tracking fail under any circumstance, but with STRICT_TRANS_TABLES, when a plugin is disabled, and the column is NOT NULL, then tracking would fail.

 Fixes #8853

Remove need for TableLogAction\Cache::$hits property which is only used for tests by injecting cache implementation used and using mock in test.

[automatic translation update] Updated 131 strings in 37 languages (be, bg, bs, ca, cs, da, de, el, es, fa, fi, fr, hi, hr, hu, id, it, ja, ko, lv, nb, nl, nn, pl, pt-br, pt, ro, ru, sk, sl, sq, sr, sv, th, tl, vi, zh-cn)

Segment editor ui tests

Do not use less functions in gradient mixins to avoid lessphp failures when the color values are not actual color values

Do not use less functions in gradient mixins to avoid lessc failures when the color values are not actual color values (eg, they could be placeholders).

 Add "Download file URL" and "Outlink URL" segments